基于蠕变模型的波形弹簧弹力衰减特性分析及寿命预测研究

基于蠕变模型的波形弹簧弹力衰减特性分析及寿命预测研究

邱海涛,王晓燕,胡鼎国,胡洋,李双喜

Elasticity decay characterization analysis and life prediction of wave spring based on creep model

Haitao QIU,Xiaoyan WANG,Dingguo HU,Yang HU,Shuangxi LI

表4 不同温度下弹力损失率与时间对数的回归方程

Table 4 Regression equations of elasticity loss rate versus logarithm of time at different temperatures

T/K	阶段	回归方程	R²
298	阶段1	$Δ F / F_{0} = 0.007 122 5 l n t + 0.019 884 6$	0.981 93
298	阶段2	$Δ F / F_{0} = 0.000 868 9 l n t + 0.029 553 6$	0.972 22
373	阶段1	$Δ F / F_{0} = 0.007 536 8 l n t + 0.020 402 0$	0.991 62
373	阶段2	$Δ F / F_{0} = 0.000 997 4 l n t + 0.030 684 6$	0.990 08
423	阶段1	$Δ F / F_{0} = 0.007 752 4 l n t + 0.021 986 7$	0.987 76
423	阶段2	$Δ F / F_{0} = 0.000 730 7 l n t + 0.033 331 6$	0.920 95
573	阶段1	$Δ F / F_{0} = 0.008 205 8 l n t + 0.024 859 1$	0.997 56
573	阶段2	$Δ F / F_{0} = 0.000 814 1 l n t + 0.035 727 0$	0.977 76
723	阶段1	$Δ F / F_{0} = 0.008 699 3 l n t + 0.026 644 9$	0.997 45
723	阶段2	$Δ F / F_{0} = 0.001 168 2 l n t + 0.036 658 7$	0.991 48